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viruses game # 24185
virus test
1. any organism or particle that can cause an infectious disease is called a
(1 point)
pathogen
viroid
bacteria
virus
2. hiv is considered a retrovirus because it

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of